diff options
| author | unknown <konstantin@oak.local> | 2003-12-04 19:12:01 +0300 |
|---|---|---|
| committer | unknown <konstantin@oak.local> | 2003-12-04 19:12:01 +0300 |
| commit | 270b72ff4f5d59442800347be1db3ab7e3084c95 (patch) | |
| tree | 32ea70364f00199eabbe41311eb10049f35cebe7 /sql/sql_class.h | |
| parent | 2e939d77dfbfff131a87dbeb30adc5d65393d3bc (diff) | |
| download | mariadb-git-270b72ff4f5d59442800347be1db3ab7e3084c95.tar.gz | |
comment to user-level lock added
Diffstat (limited to 'sql/sql_class.h')
| -rw-r--r-- | sql/sql_class.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/sql/sql_class.h b/sql/sql_class.h index beb2de9c0a9..3ffff6f1871 100644 --- a/sql/sql_class.h +++ b/sql/sql_class.h @@ -505,6 +505,11 @@ public: // TODO: document the variables below MYSQL_LOCK *lock; /* Current locks */ MYSQL_LOCK *locked_tables; /* Tables locked with LOCK */ + /* + One thread can hold up to one named user-level lock. This variable + points to a lock object if the lock is present. See item_func.cc and + chapter 'Miscellaneous functions', for functions GET_LOCK, RELEASE_LOCK. + */ ULL *ull; PREP_STMT *last_prepared_stmt; #ifndef DBUG_OFF |